-27.22% is the change from 551 to 401
Calculation steps:
[( 401 - 551 ) ÷ 551] x 100 = -27.22%
Formula
Percentage change = [(401 - 551) / 551] x 100
Subtract the new number by the original number
401 - 551 = -150
-150 ÷ 551 = -0.27223230490018147
-0.27223230490018147 x 100 = -27.22%